I have a John Deere 18.5 hp Briggs & Stratton riding mower that will not start. The battery tests 12.46 volts. All filters are new. Fresh gas and wire and cable connections correct. A new start switch two years ago. It will not turn over enough to start and will sometimes hum as if the solenoid is stuck or broke. One time it backfired when trying to start. I do not know how to test beyond what I have stated here. Does anyone have a suggestion from what to do at this point? Thanks!!
Don B.
Don B.